.fixed{
    position: fixed;
    height: 800px;
    width: 68px;
    left: calc(50% + 720px);
    top: 100px;
    border-radius: 50px;
}
.fixed ul{
    padding: 20px 0;
}
.fixed ul li{
    width: 70px;
    height: 50px;
    padding: 13px 13px;
    margin: 10px 0;
}
.fixed ul li i{
    display: inline-block;
    width: 40px;
    height: 40px;
    background-size: 40px 40px;
    background-position: centent;
    background-repeat: no-repeat;
}
.fixed .fixed-top{
    height: 300px;
}
.fixed .fixed-top,.fixed .fixed-bottom{
    background-color: #fff;
    border-radius: 50px;
}
.fixed .fixed-top ul li:nth-of-type(1) i{
    background-image: url(../img/个人.png);
}
.fixed .fixed-top ul li:nth-of-type(2) i{
    background-image: url(../img/作业.png);
}
.fixed .fixed-top ul li:nth-of-type(3) i{
    background-image: url(../img/项目.png);
}
.fixed .fixed-top ul li:nth-of-type(1):hover i{
    background-image: url(../img/个人hover.png);
}
.fixed .fixed-top ul li:nth-of-type(2):hover i{
    background-image: url(../img/作业hover.png);
}
.fixed .fixed-top ul li:nth-of-type(3):hover i{
    background-image: url(../img/项目hover.png);
}
.fixed .fixed-top ul li{
    position: relative;
}
.fixed .fixed-top ul li a:nth-of-type(2){
    text-align: center;
    line-height: 35px;
    color: white;
    font-weight: bolder;
    width: 80px;
    height: 35px;
    display: block;
    background-color: #09aeea;
    opacity: 0.1px;
    position: absolute;
    top: 18px;
    display: none;
    transition: 0.5s;
}
.fixed .fixed-top ul li:hover a:nth-of-type(2){
    display: block;
    transform: translate(-95px);
    transition: 0.5s;
}
.fixed .fixed-bottom{
    position: relative;
    bottom: calc(50% - 700px);
}
.fixed .fixed-bottom ul li:nth-of-type(1) i{
    background-image: url(../img/皇冠-1_wps图片.png);
}
.fixed .fixed-bottom ul p{
    text-align: center;
    color: #09aeea;
    font-weight: bolder;
    font-size: 17px;
}
